Valve solenoid WL0916

linearlockingminiature

Overview
Micro tubular solenoids are compact electromagnetic actuators that convert electrical energy into precise linear motion. The WL0916 reference denotes a tubular construction with typical dimensions and small stroke suitable for confined assemblies where repeatable push/pull actuation is required.

Key product description
Available in push and pull variants, these solenoids feature a seamless tubular steel case, precision-wound copper coil, stainless steel plunger with anti-friction coating, and an internal return spring. Typical electrical options span DC 3 V to 24 V and duty cycles from intermittent to continuous (model dependent). Units can be produced with environmental sealing up to IP67 and to ISO 9001 traceability standards.

Features

• Small envelope: common case diameters 6–20 mm (example units from 8 mm).
• Customizable stroke: typical 2–5 mm, model-dependent up to ~15 mm.
• Voltage range: DC 3 V, 6 V, 9 V, 12 V, 24 V (tolerance ±10% where specified).
• Duty options: intermittent or continuous (verify thermal limits for continuous use).
• Plunger: stainless steel with anti‑friction coating; materials rated for elevated temperatures (insulation Class F up to 155°C for some designs).
• Sealing: options from IP40 to IP67 for harsh or washdown environments.
• Long life designs: target lives from 200,000 cycles to 1,000,000+ cycles depending on duty management.

Product Details (functional highlights)

• Construction: seamless tubular case (high-nickel or high-carbon steel), copper coil, movable plunger, internal return spring.
• Motion: precise straight-line actuation with low side-load when aligned.
• Magnetic circuit: tubular design concentrates flux for improved force-to-size ratio.
• Configurations: push (plunger extends when energized) or pull (plunger retracts when energized).
• Terminations: bare leads, JST/Molex connectors, PCB pins or custom terminations.

Applications

• Medical devices: infusion pumps, surgical instruments, ventilators, diagnostic equipment requiring precise, cleanable actuation.
• Industrial automation: miniature valve actuation, safety locks, pick-and-place, compact mechanisms.
• Automotive: door locks, transmission/fuel modules, EV charging locks and small actuated mechanisms.
• Aerospace & defense: lightweight actuation for avionics and satellite mechanisms.
• Security: electronic locks, safes, access control systems.

Advantages & Disadvantages
Pros

• High force-to-size thanks to tubular magnetic circuit.
• Precise, repeatable stroke and positioning.
• Suitable material and sealing options for harsh environments.
• Low power consumption relative to provided actuation when correctly specified.

Cons

• Limited stroke compared with pneumatic cylinders or linear motors.
• Heat buildup under continuous high-duty operation; requires thermal consideration.
• Force decreases with increasing plunger extension (force vs. stroke characteristic).
• Possible magnetic interference near ferrous components unless shielded.
• Audible click on actuation may be unsuitable for noise-sensitive applications.

Troubleshooting & Maintenance
Common checks: verify supply voltage and wiring if no movement; measure coil resistance and inspect for obstructions if stroke is limited; check duty cycle and ventilation for overheating; confirm secure electrical connections for intermittent faults; clean tube and inspect spring/plunger alignment if sticking occurs. Preventive maintenance: operate within rated voltage/duty, keep unit free of debris, avoid side loads, and periodically verify coil resistance and temperature.

Product Datasheet summary

• Typical case diameters: 6 mm – 20 mm (example series from 8 mm).
• Typical stroke options: 2 mm – 5 mm (design-dependent; some up to ~15 mm).
• Voltage range: DC 3 V to 24 V (model-dependent).
• Sealing options: IP40 to IP67.
• Insulation/temperature: Class F materials available (up to 155°C for some components).

Technical specifications

• Model: WL0916 (product family reference).
• Example dimensions: Ø9.5 × 16 mm.
• Example plunger diameter: Ø2.8 mm.
• Example rated voltage: DC 9 V.
• Example stroke: 2.7 mm.
• Example force: 10 gf (model-dependent).
• Example power: 1.3 W; example current: 0.15 A; example resistance: 60 Ω.
• Working duty example: continuous (verify specific part rating); rated life example: ≥200,000 cycles (some designs 1,000,000+ with correct duty control).
• Materials: seamless tubular steel case, copper coil, stainless steel plunger with anti-friction coating, return spring.
• Standards & options: ISO 9001 production, RoHS/REACH, UL and medical-grade traceability available for specific variants.